Develop Reference

System image folder in config.ini doesn't exist

Recently I installed Xamarin and the Android SDK in order to mess around with Android development. After spending all day fixing errors before writing a single line of code, this one has me stumped. I haven't found a solution anywhere on the internet.
I have installed the emulator and I have downloaded several system images. I have searched for this config.ini but didn't find which one the error seemed to be referencing. I can build the solution just fine but when I try to debug it just says "There were deployment errors", and in the output window just says "Error: cancelled."
Is there any way to solve this issue?
Thanks.

So I come across the same error message on my device manager. I solved it with following step:
Go to your ~\.android\avd. There should be a folder named
[YourDeviceName].avd. For my case it was Nexus_5X_API_28_x86.avd.
Inside the folder there should be a config.ini. Look for a property
named image.sysdir.1. Mine was image.sysdir.1=system-images\android-28\google_apis_playstore\x86\.
Make sure the your have properly downloaded such image in
%ANDROID_HOME%\system-images.
For me, it seems that I have installed Android SDK twice in two different locations with Android Studio & Visual Studio Xamarin installation, and they have messed up my device manager. So I uninstalled one and moved the images and it worked fine then. While this is probably a year too late for OP, I hope this could help someone in the future.

I just had the same issue.
You solve this problem like this:
Select the corresponding Android emulator device
Hit the Ellipsis character at the upper right corner of Android Device Manager
Select "Download system image" menu item
This will download the missing system images for your Android emulator.
Here are some screenshots, depicting the solution (they're in German):
I suspect Microsoft didn't add these because they're not courtesy of Google. You need to accept Google's license terms when downloading the images.

Android application problems in Eclipse

I'm a .NET developer but I like JAVA so in my free time I play around with that. I don't normally use Eclipse but I installed the ADT eclipse plugin and Andriod SDK and I started learning and I made a new project with a TableLayout and it kinda looks good, and it runs ok on the emulator.
However... there a few things that drive me absolutely catatonic and perhaps I am doing something wrong so please help me out.
Firstly, if I change the main.xml file in whatever way, even by adding what is supposedly a correct parameter, it will start freaking out and will generate an error that just says "error" without specifying what that is, it will then generate a main.out.xml and then report an error that the main.out.xml is empty. It later won't let me delete that and will start generating a main.out.out.xml and so forth, even after I correct that original xml that caused the error.
The only way to get things going is to delete the bin folder, restart Eclipse, delete all the out xml files and then sometimes it will run the application or some other times it will start generating those 'out' files again and the loop goes on.
That way it takes hours to run a simple app even one without errors that used to run before.
Surely that was NOT how they intended it to work, is it??
Also.. there is no "Rebuild" button that will flush all files out automatically, or is it hidden somewhere? I am tired of manually deleting those automatically generated files and the build folder and all those out.xml files.
Also, while I'm at it, I also want to point out that the designer view sometimes disappears and there is nothing on earth that will bring it back, the only way is to create a new project and copy the main.xml to it and then it shows up again. Another bug?
I have the latest eclipse version:
Version: Indigo Service Release 2
Build id: 20120216-1857
If you have any clues how to get this to work, I will appreciate it!
Many thanks in advance

When you click the Run button with an XML file selected, Eclipse is running an XSL Transformation on that XML and producing the .out.xml file as the result. This is a feature of the Eclipse Web Tools feature, which you'll have if you installed the Eclipse for Java EE Developers package (it may be included in other packages, too).
As others have said above in the comments, to run your Android app, select the Project, right-click, and choose Run As > Android App. Once you've done that once, it will create a Launch Configuration that you can launch from the Run or Debug toolbar buttons (pressing the small down-arrow on the Run or Debug buttons brings up a list of Launch Configurations that you can select from, as well as an option to manage them).
There is a Preference that will make Eclipse always launch the last thing you ran or debugged, instead of trying to be smart about what is currently selected. Open the Preferences and navigate to Run/Debug > Launching; there you'll find the option under Launch Operation at the bottom of the window.

Android: Graphical Layout not working - doesn't show anything

My situation is: I once made an android project(2.2 version) but soon needed to format my computer. After formatting, I downloaded eclipse again but when I imported my project, I wasn't able to use the 'graphical layout' menu for xml. It doesn't show me anything like the picture below.
http://img525.imageshack.us/img525/3586/19978552.png
I cleaned the project and updated the Android SDK, however, none of these seemed to work well. What could be causing this?

Try restarting Eclipse. Usually that solves the problem for me when that happens.

Right click on your layout xml file and select Open With -> Android Layout Editor. It will force eclipse to open file in android's layout editor mode

None of above worked for me. what worked for me is:
1- Select a Google APIs Project Build Target rather than one of the Android X.X ones. This setting is in right click on project -> Properties->Android.
2- Make a change in XML and save it. Now switch back to "Graphical Layout" and it will show the layout.
For some, only 2nd step works.

This Question was asked 3 year ago, I am sure that you have get your solution, however i was also facing the same problem but got the solution in eclipse, here it is:-
1)Goto help->AboutEclipse->Installation details.
2)check the version of Android DDMS, Android development tool, Android hierarchy viewer, Android native development tool, Android trace view and tracer for openGl ES in installed software tab.
3)If they have different version than you have to update all of them.
4)Goto help->check for update in eclipse and follow the instruction.
5)Then restart eclipse.
This solve my problem.

The topic seems a little bit cold, but I wanted to add it nonetheless.
I had a similar problem with my layouts recently. When i create a project it automatically creates the layouts in the latest version of Android (eclipse shows it as version 22 of android as of today). But i can't see anything. So i just change the version to, say 18, and it shows ok. Furthermore if i want to change it back to version 22 it throws and exception, saying that a class can't be instantiated. (I am probably missing a class or a library on my system.)
Therefore if you cant see the layout it might be a good idea to switch back to earlier versions for development. cheers.

Blank Graphical Layout?

I don't get this. I've searched everywhere and no one's answers have solved this for me.
Why does this keep happening? I can't do anything! The XML Code is still there, but it doesn't show anything in the Graphical Editor. The Palette comes up if I change it to "4in WVGA (Nexus S)" or some other configuration, but I still can't see anything and the Theme drop down menu is unselectable. All my XML documents are like that.

Just delete any custom device screen configuration you have added . It will solve the issue :)

That just happen to me and after some attempts I found the reason.
When I first opened the project in eclipse I found some errors related with the version of Java. I changed the JDK compliance to 1.6 (Project->Properties->Java Compiler) and all errors dissapear but all graphical layouts went blank.
I uncheked "Enable project specific settings" (Project->Properties->Java Compiler) and now all the graphical layouts are working.

When everything fails, close eclipse and start it all over again, it solved my problem.

I also had that problem, it happened to me when i imported my project. after some time I came to reason just change the workspace of eclipse to folder, which contains your folder.
I changed workspace on opening eclipse, there can be some other way as well
hope this will solve it

If it has never worked for you (or something went wrong upgrading your SDK, as in my case), you may need to install an extra package. For me the issue was fixed when I installed Android Native Development Tools under NDK Plugins (SDK version 20).

I had this problem since I switched the option Show previews in the palette. I switched to show only icons, everything is ok now.

Eclipse hangs when trying to add menu.xml

I've recently starting developing with the android sdk. Currently, I am trying to add code to use a menu, however, when I try to add a menu.xml under res/menu, Eclipse hangs and freezes every time. When I reopen the Eclipse, menu.xml is there, but every time I try to open it, Eclipse hangs and freezes again.
I am running on OS X Snow Leopard, Eclipse 3.6.2 and the latest android sdk and adt plugin.
Any help, insight, thoughts?? I am thoroughly stuck.
Thanks.
Dustin

Thanks for the input guys. What ended up working for me was instead of trying to manually create a new menu.xml file, I find the add android .xml wizard and using it instead allowed me to add whatever I needed with out any hang ups.

Same problem happens for me even under the latest version of Eclipse (Helios). If I wait long enough, Eclipse reports a stack overflow exception and then this shows up in the Output window:
W/ResourceType( 5124): Bad XML block: header size 0 or total size 9949440 is larger than data size 0
menu.xml:1: error: Error parsing XML: no element found
This indicates that the XML parser isn't handling empty documents and the Android menu editor is barfing on the newly created file while trying to open it. I'm sure there is some "standard" way of creating a new menu that doesn't break the IDE but I have no idea what that method is. I'm too used to editing my files by hand but this crash/hang bug is a serious nuisance.

Dustin,
I think what has happened is, your settings have become corrupt. I highly recommend resetting all your settings. Keep in mind, you will have to re-import all your projects so this can be quite a pain, but I really think this will fix your problem.
To start, find your workspace folder and rename it to something like "workspace-bad"
Then, create an empty workspace folder to replace the one you just renamed.
Lastly, open eclipse and it will act just like a brand-new installation.
You will need to re-import your projects, which can be done by going to eclipse, hitting File>Import...
Then select under General
"Existing Projects into Workspace"
then hit "Next" and then hit "Browse" to find the root directory
also make sure "Copy project into workspace" is checked
I also recommend doing your "problem project" first, that way you don't waste your time doing the rest and then find out you have to re-create it.
I'm hoping that fixes it for you, good luck! :-)
-Jared

I ran into the same issue with the same setup. Right clicking menu.xml, selecting 'Open With', and selecting Xml Editor seemed to be a viable workaround for me.